Tooling for packaging of polysilicon rods

Abstract

The utility model relates to polycrystalline silicon production technical field especially polycrystalline silicon rod material packing frock, solve the shortcoming of polycrystalline silicon production in prior art, including base and auxiliary mechanism, the upside of base is provided with the drive mechanism of control auxiliary mechanism lift, the auxiliary mechanism includes a pair of bagging mechanism, the bagging mechanism includes arc bottom plate, the upper end of arc bottom plate is provided with movable top holding plate, the upper end fixedly connected with baffle no.

Description

Technical Field

[0001] This utility model relates to the field of polycrystalline silicon production technology, specifically to tooling for packaging polycrystalline silicon rods. Background Technology

[0002] With the development of FZ technology in the electronic-grade monocrystalline silicon crystal pulling process, downstream crystal pulling manufacturers have developed a demand for rod-shaped silicon materials. The polycrystalline silicon rods produced by upstream polycrystalline silicon manufacturers are directly sent to downstream manufacturers without being crushed.

[0003] When polycrystalline silicon rods are bagged, the space at the end of the bag is not fully expanded, causing the space from the bag opening to the end to gradually shrink. This can easily scratch the inner wall of the bag during the loading of the silicon rods, leading to packaging breakage and contamination of the silicon rods during transportation. Furthermore, the falling debris can adhere to the silicon rods, affecting the success rate of downstream crystal pulling.

[0004] Therefore, it is essential to design tooling for packaging polycrystalline silicon rods that is both practical and efficient. Utility Model Content

[0005] The purpose of this invention is to provide a tooling for packaging polycrystalline silicon rods to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tooling for packaging polycrystalline silicon rods, including a base and an auxiliary mechanism. The upper side of the base is provided with a drive mechanism for controlling the lifting and lowering of the auxiliary mechanism; The auxiliary mechanism includes a pair of bagging mechanisms. Each bagging mechanism includes an arc-shaped base plate. A movable top holding plate is provided at the upper end of the arc-shaped base plate. A baffle one and a baffle two are fixedly connected to the upper end of the arc-shaped base plate. The top holding plate cooperates with the baffle two to clamp the packaging bag. The upper end of the baffle is provided with several air outlets; The upper end of the base is provided with a positioning bracket for positioning the silicon rod body, and the positioning bracket corresponds to the center position of a pair of bagging mechanisms.

[0007] According to the above technical solution, the driving mechanism includes a pair of lifting guide columns, which are fixed to the upper end of the base. The inner side of the lifting guide column is hollow and a lead screw is rotatably connected to the inner side. A lead screw pair is driven on the lead screw, and one end of the lead screw pair extends outside the lifting guide column and is connected to the bagging mechanism.

[0008] According to the above technical solution, a pair of guide rods are fixedly connected to both ends of the top holding plate. The guide rods pass through the baffle and slide with it. A connecting seat is fixedly connected to one end of the baffle. An electric telescopic cylinder is provided on the inner side of the connecting seat. The driving end of the electric telescopic cylinder is connected to the top holding plate.

[0009] According to the above technical solution, the limiting bracket includes several limiting rods that can be relatively displaced. The lower end of the limiting rod is fixedly connected to a slider. The upper end of the base is provided with a circular groove. The bottom of the circular groove is provided with a cross slide groove. Several sliders are disposed in the cross slide groove and slide along it.

[0010] According to the above technical solution, the limiting card seat also includes a limiting turntable, which is rotatably connected in a circular groove. Several limiting inclined slots are opened through the limiting turntable, and the limiting rod passes through the limiting inclined slots. A rotating cylinder is fixedly connected to the upper end of the limiting turntable.

[0011] According to the above technical solution, a motor is provided at one end of the base, the motor drives a transmission shaft, a pair of bevel gears are fixedly connected to the transmission shaft, a bevel gear is meshed with one side of the bevel gears, and the bevel gear is fixed to the lower end of the lead screw.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: By setting a limiting bracket to limit and fix the silicon rod body, the silicon rod body is placed vertically. Then, the open end of the packaging bag is fixed to a pair of bagging mechanisms. The top plate moves relative to each other and cooperates with the second baffle to clamp and fix the opening of the packaging bag, so that the opening of the bag is opened. At this time, the second baffles on both sides are inside the opening of the packaging bag. The air inlet is connected to an external air source to supply air, so that the air is blown into the packaging bag from the air outlet, thereby filling the packaging bag with air and maintaining it in a full state, making the packaging bag upright. Then, the driving mechanism controls the pair of bagging mechanisms to descend, so that the packaging bag is covered on the outside of the silicon rod body in a non-contact manner. Then, the operator removes the silicon rod body and the packaging bag at the same time, and vacuum seals the packaged bag to complete the packaging work. The driving mechanism drives the packaging bag in the open state to move downward, so that the silicon rod body can avoid contact with the inner wall of the packaging bag, thereby avoiding the silicon rod body scratching the packaging bag and causing contamination. The operation is simple, quick and easy, and highly practical. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the bagging mechanism of this utility model; Figure 3 This is a cross-sectional schematic diagram of the present invention; Figure 4 This is a three-dimensional schematic diagram of the circular groove of this utility model; Figure 5 This is a three-dimensional schematic diagram of the limiting turntable of this utility model; Figure 6 yes Figure 3 A magnified view of a portion of region A; Figure 7 This is a three-dimensional exploded view of the limiting card holder of this utility model; In the diagram: 1. Auxiliary mechanism; 101. Arc-shaped base plate; 102. Top support plate; 103. Baffle 1; 104. Baffle 2; 105. Air outlet; 106. Guide rod; 107. Connecting seat; 108. Electric telescopic cylinder; 2. Limiting bracket; 201. Limiting rod; 202. Slider; 203. Limiting turntable; 204. Limiting inclined groove; 205. Rotary cylinder; 206. Arc groove; 207. Spring component; 3. Lifting guide column; 301. Lead screw; 302. Lead screw pair; 4. Motor; 401. Drive shaft; 402. Bevel gear one; 403. Bevel gear two; 5. Base; 501. Cross groove; 502. End face annular groove; 503. End face ratchet; 504. Guide ring; 6. Silicon rod body. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-7 This utility model provides a technical solution: a tooling for packaging polycrystalline silicon rods, including a base 5 and an auxiliary mechanism 1. The upper side of the base 5 is provided with a drive mechanism for controlling the lifting and lowering of the auxiliary mechanism 1; The auxiliary mechanism 1 includes a pair of bagging mechanisms. The bagging mechanism includes an arc-shaped bottom plate 101. A movable top holding plate 102 is provided at the upper end of the arc-shaped bottom plate 101. A baffle 1 103 and a baffle 2 104 are fixedly connected to the upper end of the arc-shaped bottom plate 101. The top holding plate 102 cooperates with the baffle 2 104 to clamp the packaging bag. Several air outlets 105 are provided at the upper end of the baffle 2 104; The upper end of the base 5 is provided with a positioning bracket 2 for positioning the silicon rod body 6, and the positioning bracket 2 corresponds to the center position of a pair of bagging mechanisms.

[0016] In use, the bottom of the silicon rod body 6 is placed in the limiting bracket 2, which limits and fixes the silicon rod body 6, making it vertical. Then, the open end of the packaging bag is fixed to a pair of bagging mechanisms. Specifically, the bag opening is placed between the top holding plates 102 and the second baffle 104 on both sides. The top holding plates 102 move relative to each other and cooperate with the second baffle 104 to clamp and fix the bag opening, so that the bag opening is open. At this time, the second baffle 104 on both sides is inside the bag opening. An air vent is opened on the inner side of the second baffle 104. The air passage is connected to the air outlet 105. An air inlet is provided at one end of the baffle 104. The air inlet is connected to an external air source for air supply, so that the gas is blown into the packaging bag from the air outlet 105, thereby filling the packaging bag with gas and maintaining it in a full state, making the packaging bag stand upright. At this time, the drive mechanism controls a pair of bag-fitting mechanisms to descend, so that the packaging bag is fitted onto the outside of the silicon rod body 6 in a non-contact manner. Then, the operator removes the silicon rod body 6 and the packaging bag at the same time, and vacuum seals the packaged packaging bag to complete the packaging work. Preferably, the gas introduced into the packaging bag from the gas outlet 105 can be a clean gas such as nitrogen, which further improves the cleanliness of the silicon rod body 6 packaging while expanding the packaging bag; In this application, the packaging bag is moved downward by the drive mechanism in the open state. The silicon rod body 6 can avoid contact with the inner wall of the packaging bag, thereby avoiding the silicon rod body 6 scratching the packaging bag and causing pollution. The operation is simple and quick, and it is highly practical.

[0017] The drive mechanism includes a pair of lifting guide columns 3, which are fixed to the upper end of the base 5. The inner side of the lifting guide column 3 is hollow and a lead screw 301 is rotatably connected to the inner side. A lead screw pair 302 is driven on the lead screw 301. One end of the lead screw pair 302 extends beyond the lifting guide column 3 and is connected to the bagging mechanism.

[0018] It should be noted that the driving mechanism includes, but is not limited to, linear driving mechanisms such as lead screw mechanism, gear rack mechanism or cylinder hydraulic cylinder. In this embodiment, by rotating the lead screw 301, the lead screw pair 302 is driven to slide along the inner wall of the lifting guide column 3 to move up and down, thereby enabling the lead screw pair 302 to drive the bagging mechanism to move up and down, so as to realize the bagging and packaging of the silicon rod body 6. Preferably, a motor 4 is provided, which drives a transmission shaft 401. A pair of bevel gears 402 are fixedly connected to the transmission shaft 401. A bevel gear 403 is meshed on one side of the bevel gear 402. The bevel gear 403 is fixed to the lower end of the lead screw 301, thereby realizing the synchronous drive of the pair of lead screws 301.

[0019] A pair of guide rods 106 are fixedly connected to both ends of the top plate 102. The guide rods 106 pass through the baffle 103 and slide with it. A connecting seat 107 is fixedly connected to one end of the baffle 103. An electric telescopic cylinder 108 is provided on the inner side of the connecting seat 107. The driving end of the electric telescopic cylinder 108 is connected to the top plate 102.

[0020] Preferably, the top holding plate 102 is displaced by the electric telescopic cylinder 108, and the guide rod 106 provides guidance, thereby controlling the displacement of the top holding plate 102 to clamp or release the packaging bag.

[0021] The limiting seat 2 includes several limiting rods 201 that can be relatively displaced. The lower end of the limiting rod 201 is fixedly connected to a slider 202. The upper end of the base 5 is provided with a circular groove, and the bottom of the circular groove is provided with a cross slide groove 501. Several sliders 202 are disposed in the cross slide groove 501 and slide along it.

[0022] Preferably, when it is necessary to center and position the silicon rod body 6, a number of limiting rods 201 are provided. Specifically, the sliders 202 at the lower end of the limiting rods 201 slide along the cross grooves 501, so that the four limiting rods 201 move towards the center simultaneously, thereby centering and positioning the silicon rod body 6. The limiting rods 201 and the silicon rod body 6 form line contact, which reduces the contact area and can also be used to position and package silicon rod bodies 6 of various diameters, improving versatility.

[0023] The limiting card holder 2 also includes a limiting turntable 203, which is rotatably connected in a circular groove. Several limiting inclined slots 204 are opened through the limiting turntable 203, and the limiting rod 201 passes through the limiting inclined slots 204. A rotating cylinder 205 is fixedly connected to the upper end of the limiting turntable 203.

[0024] Preferably, when it is necessary to drive the four side limit rods 201 to move synchronously, a limit turntable 203 is provided. Specifically, the limit rods 201 are restricted in displacement by the limit groove 204 opened on the limit turntable 203. When the operator rotates the drum 205 and drives the limit turntable 203 to rotate, the limit rods 201 are restricted and driven in displacement by the limit groove 204. The slider 202 moves along the cross groove 501 for guidance, so that the limit rods 201 can be synchronously merged or unfolded, thereby realizing synchronous control of the four side limit rods 201. Optionally, in order to further improve the stability of the clamping of the limiting rod 201 and prevent the silicon rod body 6 from loosening during the packaging process, an end face ratchet 503 is provided. Specifically, an end face annular groove 502 is provided at the bottom of the circular groove, and the end face ratchet 503 is adapted to it. The end face ratchet 503 is located on the lower side of the limiting turntable 203 and there is a distance difference between the two and several springs 207 are provided between them. A circular opening is provided through the middle side of the end face ratchet 503, and a guide ring 504 is fixedly connected to the upper end. Several square openings are provided at the lower end of the guide ring 504. Several arc-shaped grooves 206 are provided through the outer side of the limiting turntable 203. The guide ring 504 and the arc-shaped grooves 206 are intersected and slide. Under the action of the spring 207, the end face ratchet 503 always remains in contact with the end face annular groove 502. When it is necessary to clamp the silicon rod body 6, the operator rotates the rotating drum 205 and the limiting turntable 203 (rotation direction as follows). Figure 7 As shown, the guide ring 504 and the end face ratchet 503 are rotated by the arc groove 206. The end face ratchet 503 moves along the inclined surface of the end face ring groove 502, so that the end face ratchet 503 floats up and down to avoid interference and does not affect the rotation until the four side limit rods 201 clamp and position the silicon rod body 6. At this time, the end face ring groove 502 jams the end face ratchet 503, making it unable to reverse, thus fixing the current position of the limit rod 201 and keeping it in the clamping state. When it is necessary to loosen the silicon rod body 6, the operator pulls the guide ring 504, which in turn pulls the end face ratchet 503 up, away from the end face annular groove 502, thereby releasing the jamming restriction. Then the rotating drum 205 can be rotated in the opposite direction, thereby driving the limit rod 201 to loosen. The operation is simple and quick.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tooling for packaging polycrystalline silicon rods, comprising a base (5) and an auxiliary mechanism (1), characterized in that: The upper side of the base (5) is provided with a drive mechanism for controlling the lifting and lowering of the auxiliary mechanism (1); The auxiliary mechanism (1) includes a pair of bagging mechanisms. The bagging mechanism includes an arc-shaped bottom plate (101). The upper end of the arc-shaped bottom plate (101) is provided with a movable top holding plate (102). The upper end of the arc-shaped bottom plate (101) is fixedly connected with a baffle one (103) and a baffle two (104). The top holding plate (102) cooperates with the baffle two (104) to clamp the packaging bag. The upper end of the baffle (104) is provided with several air outlets (105); The upper end of the base (5) is provided with a positioning bracket (2) for positioning the silicon rod body (6), and the positioning bracket (2) corresponds to the center position of a pair of bagging mechanisms.

2. The tooling for packaging polycrystalline silicon rods according to claim 1, characterized in that: The driving mechanism includes a pair of lifting guide columns (3), which are fixed to the upper end of the base (5). The inner side of the lifting guide column (3) is hollow and a lead screw (301) is rotatably connected to the inner side. A lead screw pair (302) is driven on the lead screw (301). One end of the lead screw pair (302) extends outside the lifting guide column (3) and is connected to the bagging mechanism.

3. The tooling for packaging polycrystalline silicon rods according to claim 1 or 2, characterized in that: A pair of guide rods (106) are fixedly connected to both ends of the top support plate (102). The guide rods (106) pass through the first baffle (103) and slide with it. A connecting seat (107) is fixedly connected to one end of the first baffle (103). An electric telescopic cylinder (108) is provided on the inner side of the connecting seat (107). The driving end of the electric telescopic cylinder (108) is connected to the top support plate (102).

4. The tooling for packaging polycrystalline silicon rods according to claim 1, characterized in that: The limiting seat (2) includes several limiting rods (201) that can be relatively displaced. The lower end of the limiting rod (201) is fixedly connected to a slider (202). The upper end of the base (5) is provided with a circular groove. The bottom of the circular groove is provided with a cross slide groove (501). Several sliders (202) are arranged in the cross slide groove (501) and slide along it.

5. The tooling for packaging polycrystalline silicon rods according to claim 4, characterized in that: The limiting card holder (2) also includes a limiting turntable (203), which is rotatably connected in a circular groove. Several limiting inclined slots (204) are opened through the limiting turntable (203), and the limiting rod (201) passes through the limiting inclined slots (204). A rotating cylinder (205) is fixedly connected to the upper end of the limiting turntable (203).

6. The tooling for packaging polycrystalline silicon rods according to claim 2, characterized in that: A motor (4) is provided at one end of the base (5), and the motor (4) drives a transmission shaft (401). A pair of bevel gears (402) are fixedly connected to the transmission shaft (401). A bevel gear (403) is meshed on one side of the bevel gear (402), and the bevel gear (403) is fixed to the lower end of the lead screw (301).

7. The tooling for packaging polycrystalline silicon rods according to claim 5, characterized in that: The upper outer side of the rotating drum (205) is fitted with an anti-slip rubber ring.

Images